Attachment for locomotives



July 27,192 1,594,017

- I c. STERN ETAL' ATTACHMENT FOR LOCOMOTIVES Original Filed gust 8, 1921 5 Sheets-Sheet l 1 nvervhors rddarv o -CkcwZes Jr/rvv July 27,-1926. v 1,594,017 S I I c. STERN ETAL ATTACHMENT FOR LOCOMOTIVES Original Filed August 8, 1921 .3 Shet's-Sheet 2 July 27,1926; n v 1,594,077

c. STERN ET AL' ATTACHMBNTIFOR LOCOMOTIVES Original Filed August 8, 192; 3 Sheets-She et 3 I'FFI ECU 9 g u I //////l 7 wome v j Patented 'july 27, 19261 in'g application "Serial No.

- sulted in the frequent necessity JT UN Y li SS E E IJ RS Y Q N W imss ia w R HAR W; m mt v YORK, 1v. ASSIGNQRS TO B & sMANUsAcr RINs rnonnfc'crs oonreolmrioizr, on

P NTYi JE sEY CITY, NEW JERSEY, A 'ooRrosA'non YOFYNEWJERSEY.

mm/mm sonfnooorliomvns,

Original application filed Au gnst 8,

The present invention relates'to improve- Inen't's in attachments, for locomotives and is a division of our similarly-entitled"copend- 490 605 filed August 8," 19:21. i

' 'Iti's" an obj ect of the inv'entionf to provide an improved device; for efiectively lnbricat- 51mg the cyl nders of a locomotive; and at the same tlnl serxung to break the vacuumxin" cylinders While the locomotive is drift} mg or coasting withthe throttle closed;

' No s' mallytrouble and annoyance has been" experienced, heretoforeiin the proper lubrrcation of the"intfernal parts of locomotive cyl nders and faulty lubrication V has i reiol 1e- 2 n'e v'ving piston ring'syjremoving"carbon,land otherwise repairing the pistons and scored cylinderr 'vvalls. Moreover, it is desirableito. insure the flow of lubricant not only jivh'en the. engine is operating under steam, but als01 ,rwhen drifting or coasting with the throttle closed.

i relieve the vacuum which the traveling pis- It is another object of the present invention to accomplish the accurate and timely lubrication'o f locomotive cylinders by a device which will at the same time operate .to

tons tendto create in'the cylinders when the engineis coasting or dr ifting,"and vwhich willj furthermore serve vto furnishLlubricant cto'the int'ernjalparts Whenever the'locomo- {tive is in motion Without regard .to Whether it be drifting or moving under steam.

A further object of the invention is to provide a. device for carrying out the above described purposesin a slmple yet faithful manner, and wherein the dev ce is of a simple and inexpens ve vstructure and 1s so built up as tobe capable of installation up on locomotives of present types Without any a material'alteration therein] e-11 further objectofeth ;invention is to provide means so that steam Will cushion theisteam pistons andlheir reciprocating parts in the steam cylinders and keep the superheated'units moist While the locomotive is coasting or drifting.

-W'ith the foregoing and other objects inl View, the invention ill be more fully described hereinafter, and Willbe more particularly pointed out in the claimsappended hereto.

esiyseriaiiivo. 480,-05. inmee I 1923. Serial n ise ess;

v 1,524,077 I i (land this app lication filed June; 7;

" Islam drawings; aWilts-1's" like" symbols refer to like or corresponding parts through-w out the several 'views,: 7

Figure l'is a d agrammatic View showing- 7 the lmproved deviceconnected to, a locoino tive valve chest.

through the device.

sequent position of the parts. Figure 4 is an elevatlon of the a portion-shown in sect on;

on ther locomotive at 'ahigherleveh com-1 LFigure 2 is vertical section taken;

device vvith Figure 5 isa verticai section of a. 'lubr'icatlubricant froma reservoir or tank 71 held "Figure, 3 is asnnilar vieW'showing-a sub- The numeral 100 olesmunication being established by means of .a f

sloping pipe 70.; v I

'The'device 100 is also in connection with a source of steam supply at boiler pressure through a iconnectionf' and'the device connects with the valve'chest 65 by& pipe 2,

P p rly 3 Within.

A lubricatingcup is shown at'99above the device to f supply the'lnecessary oil to grease; the various working parts Referring ,to Figu res 2', 3" and-4L, the ca s-'3 ing 100 is provided fvviththe annular'steam chamber 101 surroundingscentral barrel 102 in] vvhichflthe' stem 10 3 reciprocates ver-f ftically. A. threadedconnection 104 is made I:

at one side of the casing-for the connec-- tion of the'steamfpipe 95 which thus serves to connect the steam chamber 101 With the steam'dOme f the locomotive or other source v of saturated steam .supply'. For instance,

the connection' lOtmay receive the pipe '95 1 (the threaded-boss 105 ofthe 'c asing""l0Qi .rel1l02 where suchjoil passage communi- 'as shown in Figural and the pipe 70 as shown in Figure 1, maybe'fconnected to IOU a there being an 'oil passage 10 6,; leading downwardly at an inclination centrally of the casing and through the Wall "of the "bar v 'cates With' an annular cut-out portion lO T ofthestem 103'. A seriesvof centrally in- V clined ports 108 set up'a free communicathe bore 109 of the stem.

, tion of the piston 110.

ot oil or other suitable lubricant;

tion between the out-out portion 107 and The lower portion of the stem is provided with a piston 110 operating in a cylinder 111 formed witnin the casing and axially thereof, with a passage 112e2-1tending at the side thereof andbelow the same. The lower end of the casing is provided with a threaded part 113 to take'a' pipe such as the p pe 2 in Figure 1 which leads to the steam chest The steam in the steam chest and channel 112 communicates with the bottom por- I v V I Steam is also admitted to the upper side of the piston 110 by narrow ports 11%. Thestem is provided with an enlarged portion 115 which as shown in Figure 3 is adapted to close the communication between the steam chamber 101 andthe channel"112. The lower end of the steam or the piston 110 carriesan oil pipe 116 threaded removably into such stem or piston and also being threaded at its lower end to receive a cap 117 provided with numerous small perforations 118 to allow of the descent of oil therethrough. Above, the stem 103 carries a piston 11 9 operating in a cylinder 120. The piston 119 and cylinder 120 are larger in diameter than the piston 110 and its cylinder 111,;and the parts 121 which piace the lower side of the piston 11.9. in commun cation with the steam chanr,

her 101 are of larger diameter than the laOltS 114a of the lower cylinder 111.

Iii-a a is comp sed of two s c ion 2 and 123 having flanges with a packing 124; therebetween and bolts 125 put through the flanges and packing to hold the head sections tightened together. The port 12. allows of the outlet of steam from the head when the upper piston 119 is in the lower position shown in Figure 2. As more particularly shown in Figure 4 a port 127 is provided in the, lower portifl l 0f the lower cylinder 111 and communicates with a passage 128 in the casing, which leads upwardly to and e e iu icetes w th he h d.

The f w f s eam up ar ly thro gh t passage 1218 is controlled by a springpressed check valve 129. V A plug 130 at the lower end of the passage 128 may be removed for purposes of cleanirg. The stem 103(is provided with a hOllow projecting stem por tion 131 which passes upwardly through the head and may with advantage be equipped n a upp ementa y l b ator as 0 un ed ace lies t igure In h stance, the extension stem 131 is screwtbreaded at its upper end to receive the read upon e bass' 32 of t e ubr oat ing cup 01" reservoir 133, which is of a suitable capacity to contain a desired quantity The oil is put in a plug 13-1 and regulated in its passage down through the extension stem by 'phere.

the use of a needle valve 135 having a screwthreaded adjustment and be ngcoperable by a milled head 136. A by-pass 137 ls'provided about the containin ortion of the device is in the nature of an auxiliary lubricator. I 7 7 Referring now more part cularly to Fig.

which leads from'the head 19, is shown to be placed in communication by a sultable pipe C 3. or other desired connections with a tube i l having a perforation in alin ment with the pipe '73 and with a socket 76 in which the pipe 7'3 may be screw threaded. A li re perforation 77 is provided in the opposite side of the tube 74 and communicates directly with the outside atmos- These passages are. adapted to be placed in communication by means of an annular channel 78 extending aboutthe cenral po ion yl nd cal solid al e .79 which reciprocates in the tube 74 and is provided with stems Y and 81 WhiGh projcct outwardly through the screw threaded (i. r In this instance the exhaust passage 126, r

and flanged heads 82 and 83 which close the opposite ends of the tube 74L Coil springs 84c and 85 are disposed Within the tube-and engage at their'outer ends the heads 82 and 83' and at their inner ends the opposite ends of the cylindrical valve.

dy 7 p ings 8 and 85 are et like strength and it left tothemselves will Lring the intermediate channel 7 8 to a cen. tii'al position where the portsc75 7 7 may a me.

A bell 87 is mounted upon the endof the stem. In traveling, air induced by the movement of the locomotive will strike the bell 8? and will shift the valve body 79 rearwards so that its solid portion will come between the ports 75 and ,77. Springs 8st and 85 are of a light character to permit this action when the locomotive is moving at 11 s ow rate. r course the area o the be l in conjunction with the strength of the p i g wil eg late he, openi g of the ports.

The operation of the device is as fol,

lows

Oil flows from the lubricating reservoir ?1 down through the pipe 70 and into the passage 106. In eitherposition of the valve as shown a Figs, 2511613, as 1 willj he permitted to enter, the cut-out part 107 and getting into thepo'rts108"will enter the bore109 of thestem' 3. It will'be under stood that an'emergencyi oil is supplied also 'from' t'he lubricator133 at the top of the" extension stem as heretofore" described: The? needle valve 135 isflocked in place inrad justment by a nu't as shownimFig. 511 E'This f supplementary or .aii'xiliary- 'oilisdeemed desirable to lubricate the cylinder and steam chest whilei'the engine is driftingor being" towedfor if the'otherf lubricating means should get out of order.

" From the chamber 101, steam will flow upwards through the ducts 121 and down wards through the ducts 114, the chamber.

101 being normally filled with,steam.- The 1l9 than down upon the piston 110, and the upper piston will therebyte'nd to' move up wards and to be held against'descent because of its largerareaQ This arrangement 'ob-- Viates the need-aloft S overnor t close oft'the 'stea'mports 7 During the normal runningof the loco-x inotive with the throttle open the pistons 119 and 110 will remain in the upper posltion as shownin Figure 3, not only because of 1 the presence of saturated steam beneath the upper. piston 119 as just explained, but alsobecause the lower portion of thelower p1s-.

ton is subject to the steam chest -pres sure; In this raised position of the parts, the lower piston 110 exposes the port 127 as shown in Figure 4, to the steam within the lower cylinder 111 and this steam passes up through the passage 128, raises the nonreturn check valve 129 and enters the large the outlet port 126.

chamber 'at the top above the piston 119. The steam accumulates in this large chain ber and is prevented from escapingowing to the fact that the upper piston 119 in its upper position, as shown in'Figure '3, masks During the running of the locomotive with the throttle open, therefore, the parts will remain in this upper, position andthe communication between the saturated steam chamber 101 and the passage1'12 will be kept closed by the-solid portion of the stem 103. Oil from the main reservoir 71 will, however, be permitted to enter the hollow valve stem 103 and descendthrough V the choke ports 118 and into the steam chest 7 and cylinder of the engine due toits mixing withthe steam "from the. throttle.

As soon as the throttle is closed-and the locomotive begins to drift, the steam chest pressure will immediately fall under piston '110 and the accumulatedpressure in "the dome or upper chamber 122 will"force thepistons downwardly to the position shown a 3 1n Figure2 therebyestablishing communicag tion between the saturated steain -cha'mber 101,:wh1ch 1S always in communication with steam at boiler pressure,and the passage112' thus furnishing steam to thei'noving; parts in thevalve chests and cylinderand break ingjthe vacuum and moistening these parts. Moreover this" boiler steam; passing the i a w ch oke head 117' will pick up the oil dropping from the smallportsllS and carry this oil into the moving parts of the locomotive ;to

parts are in the lower position, the upper accumulated press 'As the locomotiveus slowing there is more stefainin the locoinoti-ve cyhn-j 'ders'j than the-pistons canftake carepf and consequently, a back pressure occurswhich pressure beneaththe larger area of the up- .per piston 119. 'Thissaturatedsteam press V, sure'beneath the' piston-11 9 wvill also hold I v the parts in theraised position afterthe the. lower piston 110 is evacuated.

of lubricant as lcomparedwith the size of the steam chest and cylinders and anyiaccumulation of oil resulting from the drip ping from the cup during standing "of the locomotive will readily be takenup by the large'steam chests andcylinders of thelocomotive. The cup 133 provides an auxiliary; lubricant supply which is brought-into use in caseof accident to the main lubricator 71.

locomotive-stops and the pressure beneath' effectually lubricate the" s'ame'.-'*VVhen the-1 80 piston 119 exposes the port120 so that the ure in the-upper chamber 7 gets beneath the lower5pist 1m drivingflw I: vpartsiupwardly a n 2 p S tion shown a in" Figure 3, i i r y 1 I I .1 V i i V. F t H190 This is assisted by the saturated; steam "The oil cup 133 holds but a small quantity Preferably the valve 1350f the auxiliary lubricator will be normally adjusted so that only'a small'qu-antity of the auxiliary body of lubricant is allowed to escape, the lubrication of the arts-being chiefly taken care of by the main lubricant 71. y In case of emergency. however,'the valve 135 may be opened to a greater extent so as to furnish sufiicient lubricant from the auxiliary cup totake careof the entire lubrication of the parts. i

H-The device 71 is a, three-feed lubricator used on all locomotives to deliver oil by drops to the steam chest and cylinders of the 7 Instead of connecting this lubricator 71 withthe steam supply pipe, as

locomotive.

is done on all locomotives, infthis case, it is connected to the locomotive part'sthroughi the port-106 and stem 103. The lubricator operates in the usual wayand supplies .lu-

brieant at all times, during the running of the locomotive and during short] stops.

'When a prolongedstop is made the engineer closes the lubricator' 71 in the cab. The

needle valve 135 may be closed at terminals, if desired, but the quantity of oil is only inmain lubri'cator 71 is shut ol'I by the engineer; I

l/Vhat is claimed I An attachment for locomotives comprising a casing having a chamber incommunication With a source of steam supply and cylinders communicating at. their inner portions With the chamber and at their outer portions With the steam chest pressure, pistons in said cylinders, means to trap the accumulated steam chest pressure on the outer face of one of the pistons, the cylinde rof said last mentioned piston having means opened in one position ofthe piston therein for evacuating the accumulated pressure,

said casing having a passage in communication With the locomotive steam chest and With said chamber, a barrel extending through said chamber, a lubricator :connect ing with the interior of the barrel, a hollow stem connecting said pistons and slidable through said barrel, said stenrhaving a cut out portion to place the chamber in. communication with said passa e, in one posi- 'tion of the stem and said stem having a fur-o ther cut out portion and ports connecting the last mention-ed cut out portion With the interior of the stem for supplying lubricant to the interior of the'stemin all positions of the stem, a choke carried by'said stem and in communication with the interior thereof, said choke having small passages for the discharge of oil, said choke extending into said passage, and :an auxiliary lubricatoi supported from and movable With said stem and having an equallz ng by-pass communicating W1th the upper and lower portions of the column of lubricant therein, and means to regulate the supply from said auxiliary lubricator.

V In testimony whereof CHARLES STERN; RICHARD W. BRADEN. r

We .afiix our signa- 

